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Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof

A technology of temperature sensitivity and fabrics, applied in textiles and papermaking, etc., can solve the problems of airtightness, affecting work efficiency, poor comfort, etc., and achieves the effect of simple preparation method, easy operation, and reduced voids

Inactive Publication Date: 2010-06-09
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-immersion fabrics suitable for Type A anti-immersion suits include neoprene-coated fabrics and PVC-coated fabrics. These fabrics have excellent anti-immersion performance, but are impermeable to air and moisture, and have poor wearing comfort, which affects work efficiency.
Anti-soaking fabrics suitable for type B anti-soaking suits include high-density cotton fabric (Ventile), microporous PTFE laminated fabric Gore-tex (Gore-tex) and non-porous polyurethane coated fabric. Waterproof and moisture-permeable, which improves the wearability and comfort of anti-immersion clothing, but has the problem of insufficient anti-immersion performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof
  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof
  • Method for preparing temperature sensitive intelligent anti-dip facing material and product thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0018] The preparation method (referred to as the preparation method) of the temperature-sensitive intelligent anti-soaking fabric (abbreviated as the anti-soaking fabric) designed by the present invention comprises the following steps:

[0019] 1. Synthetic temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; adopt the N-tert-butylacrylamide and acrylamide that feed molar ratio is 60~40: 40~60 (preferably 50:50) in Free radical polymerization occurs in methanol with ammonium persulfate or azobisisobutyronitrile (preferably ammonium persulfate) as the initiator; the reacted mixed solution is vigorously stirred, and the copolymer is precipitated with acetone and dissolved 3-5 times Precipitation gave a pure, white solid of N-tert-butylacrylamide and acrylamide copolymer. The aqueous solution of the obtained copolymer is temperature sensitive, and can be dissolved in water at a certain temperature, and it will not dissolve at a temperature higher than this temp...

Embodiment 1

[0028] 1. Synthesis of temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; N-tert-butylacrylamide and acrylamide with a feed molar ratio of 50:50 are used in methanol to generate ammonium persulfate as an initiator Free radical polymerization reaction; the reacted mixed solution was vigorously stirred, and the copolymer was precipitated with acetone, and dissolved and precipitated 5 times to obtain pure, white solid N-tert-butylacrylamide and acrylamide copolymer. Gained copolymer adopts spectrophotometry to measure its LCST to be 28.2 ℃ (referring to figure 1 ).

[0029] 2. Preparation of coating liquid: 8% (mass, the same below) of the copolymer obtained in the first step, 2.3% of the crosslinking agent BTCA and 2.2% of the catalyst SHP are formulated into an aqueous solution, stirred and put into the refrigerator for defoaming At least 24 hours, and make it further dissolve and mix, during which it can be stirred frequently to speed up the dissolution an...

Embodiment 2

[0033]1. Synthetic temperature-sensitive N-tert-butylacrylamide and acrylamide copolymer; adopting a feed molar ratio of N-tert-butylacrylamide and acrylamide in methanol with azobisisobutyronitrile as 40: 60 The initiator undergoes a free radical polymerization reaction; the reacted mixed solution is vigorously stirred, and the copolymer is precipitated with acetone, and after 4 times of dissolution and precipitation, a pure, white solid N-tert-butylacrylamide and acrylamide copolymer are obtained. The LCST of the obtained copolymer measured by spectrophotometry was 39.0°C.

[0034] 2. prepare coating liquid: the multipolymer of 15% (mass, the same below) the 1st step gained, the cross-linking agent BTCA of 5.0% and the catalyst SHP of 2.5% are formulated into the mixed homogeneous aqueous solution, all the other are the same as embodiment 1.

[0035] 3. Fabric coating: Coat the pre-treated pure cotton fabric twice with the coating solution prepared in step 2, and dry the fab...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a preparation method for an intelligent temperature-variable and immersion-proof shell fabric and a product thereof. The preparation method comprises the following steps: 1. temperature-variable copolymer of N-tert-butyl-acrylamide and acrylamide is obtained through the composition with a to b as the mole ratio of incoming stocks; wherein, the a lies between 60 and 40, andthe b lies between 40 and 60; 2. a coating layer liquid is prepared according to the following concentration formulation by mass: 8 to 15 percent of the copolymer, 2.0 to 5.0 percent of a crosslinking agent that is 1,2,3,4-butane tetrabasic carboxylic acid and 0.5 to 2.5 percent of a catalyst that is sodium hypophosphite; 3.the coating layer liquid is used for coating a preprocessed fabric; 4. the immersion-proof shell fabric can be obtained through post processing. The product is produced by adopting the preparation method of the intelligent temperature-variable and immersion-proof fabric ofthe invention.

Description

technical field [0001] The invention relates to the functional finishing technology of textile fabrics, specifically a method for preparing temperature-sensitive intelligent anti-soaking fabrics applied to anti-soaking clothing and its products. The international patent main classification number is proposed to be Int.Cl.DO6M13 / 00 (2006.01) I. Background technique [0002] Anti-immersion clothing, also known as cold-proof and anti-immersion clothing, is a special protective clothing with warmth and anti-immersion effects, and is mainly used for lifesaving in rivers, rivers, lakes and seas. The anti-immersion suit is a necessary equipment for flight personnel and water area operators (such as sailors, oil drilling platform staff, etc.), to prevent the wearer from being injured due to a large amount of body heat loss in a short period of time after falling into the water. even death. Anti-soaking fabric is a special fabric for making the anti-soaking layer of anti-soaking cl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00C08F220/54
Inventor 刘书芳牛家嵘顾振亚
Owner TIANJIN POLYTECHNIC UNIV
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